BIN 553401 — Lookup & Card Details

BIN 553401 is issued by Banco Santander S.A., from Spain, on the mastercard network, as a credit card.

A Bank Identification Number (BIN, or Issuer Identification Number / IIN) is the first 6 to 8 digits of any payment card. It tells the payment network which institution issued the card, what kind of card it is, and where it was issued. For BIN 553401, that institution is Banco Santander S.A. in Spain. The card runs on the mastercard network. Transactions settle in EUR.

Merchants, fraud teams, ad platforms and developers use BIN data to route transactions, localize checkout, detect chargebacks and decide which card products they accept. BIN 553401 itself is public metadata — it identifies the issuer, not the cardholder.